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CPC
COOPERATIVE PATENT CLASSIFICATION
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G01V
GEOPHYSICS ; GRAVITATIONAL MEASUREMENTS ; DETECTING MASSES OR OBJECTS ( detecting or locating foreign bodies for diagnostic, surgical or person-identification purposes A61B; means for indicating the location of accidentally buried, e.g. snow-buried persons A63B 29/02 ; investigating or analysing earth materials by determining their chemical or physical properties G01N; measuring electric or magnetic variables in general, other than direction or magnitude of the earth`s field G01R; electronic or nuclear magnetic resonance arrangements G01R 33/20 ; radar, sonar or analogous methods in general, detecting masses or objects involving these methods G01S )
NOTE
-
In this subclass, the geophysical methods apply both to the earth and to other celestial objects, e.g. planets.

Attention is drawn to the Notes following the title of class G01.

WARNING
-
The following IPC groups are not used in the CPC scheme. Subject matter covered by these groups is classified in the following CPC groups:
G01V3/11 covered by G01V 3/10 B, G01V 3/10 C

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G01V 1/00
Seismology ; Seismic or acoustic prospecting or detecting
NOTE
-
Groups G01V 1/44 to G01V 1/52 take precedence over groups G01V 1/001 to G01V 1/393 G01V 1/42

WARNING
-
Group G01V 1/159 does not correspond to former or current IPC groups. Concordance ECLA:IPC for this group is as follows: - G01V 1/159 : G01V 1/02

G01V 1/001
.
{
Acoustic presence detection ( measurement of sonic vibrations G01H; alarm systems G08B )
}
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G01V 1/003
.
{
Seismic data acquisition in general, e.g. survey design ( G01V 1/3808 , G01V 1/42 takes precedence )
}
G01V 1/005
. .
{
with exploration systems emitting special signals, e.g. frequency swept signals, pulse sequences or slip sweep arrangements
}
G01V 1/006
. .
{
generating single signals by using more than one generator, e.g. beam steering or focussing arrays ( G01V 1/13 , G01V 1/3861 takes precedence )
}
G01V 1/008
.
{
Earthquake measurement or prediction ( event detection for microseismic events G01V 1/288 )
}
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G01V 1/02
.
Generating seismic energy (
{
G01V 1/003 takes precedence
}
 ; blasting in general F42; nuclear explosives G21J )
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G01V 1/04
. .
Details
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G01V 1/047
. . .
Arrangements for coupling the generator to the ground
G01V 1/0475
. . . .
{
for controlling "Ground Force"
}
G01V 1/053
. . . .
for generating transverse waves
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G01V 1/06
. . .
Ignition devices ( G01V 1/393 takes precedence )
G01V 1/08
. . . .
involving time-delay devices
G01V 1/09
. . .
Transporting arrangements, e.g. on vehicles ( G01V 1/38 takes precedence )
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G01V 1/104
. .
using explosive charges ( G01V 1/157 takes precedence )
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G01V 1/108
. . .
by deforming or displacing surfaces of enclosures
G01V 1/112
. . . .
for use on the surface of the earth
G01V 1/116
. . .
where pressurised combustion gases escape from the generator in a pulsating manner, e.g. for generating bursts
G01V 1/13
. . .
Arrangements or disposition of charges to produce a desired pattern in space or time
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G01V 1/133
. .
using fluidic driving means, e.g. highly pressurised fluids;
{
using implosion
}
 ( G01V 1/104 takes precedence )
G01V 1/135
. . .
by deforming or displacing surfaces of enclosures
{
, e.g. by hydraulically driven vibroseis™
}
G01V 1/137
. . .
which fluid escapes from the generator in a pulsating manner, e.g. for generating bursts
{
, airguns
}
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G01V 1/143
. .
using mechanical driving means
{
e.g. motor driven shaft
}
 ( G01V 1/104 , G01V 1/133 take precedence )
G01V 1/145
. . .
by deforming or displacing surfaces
{
, e.g. by mechanically driven vibroseis™
}
G01V 1/147
. . .
using impact of dropping masses
G01V 1/153
. . .
using rotary unbalanced masses
G01V 1/155
. . .
using reciprocating masses
G01V 1/157
. .
using spark discharges ; using exploding wires ( spark gaps,
{
non-enclosed
}
 discharge apparatus, not otherwise provided for H01T )
G01V 1/159
. .
{
using piezoelectric or magnetostrictive driving means ( generating mechanical vibrations by using piezoelectric or magnetostrictive effect in general, B06B 1/06 , B06B 1/08 )
}
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G01V 1/16
.
Receiving elements for seismic signals ( electromechanical transducers H04R ) ; Arrangements or adaptations of receiving elements
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G01V 1/162
. .
{
Details
}
G01V 1/164
. . .
{
Circuits therefore
}
G01V 1/166
. . .
{
Arrangements for coupling receivers to the ground
}
G01V 1/168
. .
{
Deployment of receiver elements ( G01V 1/3843 takes precedence )
}
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G01V 1/18
. .
Receiving elements, e.g. seismometer, geophone
{
or torque detectors, for localised single point measurements
}
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G01V 1/181
. . .
{
Geophones
}
G01V 1/182
. . . .
{
with moving coil
}
G01V 1/183
. . . .
{
with moving magnet
}
G01V 1/184
. . . .
{
Multi-component geophones
}
G01V 1/185
. . . .
{
with adaptable orientation, e.g. gimballed
}
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G01V 1/186
. . .
{
Hydrophones
}
G01V 1/187
. . . .
{
Direction-sensitive hydrophones
}
G01V 1/188
. . . .
{
with pressure compensating means
}
G01V 1/189
. . .
{
Combinations of different types of receiving elements
}
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G01V 1/20
. .
Arrangements of receiving elements, e.g. geophone pattern
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G01V 1/201
. . .
{
Constructional details of seismic cables, e.g. streamers ( integrated optoseismic systems G01V 1/226 ; line connectors in general H01R, transducer mountings in general G10K 11/004 )
}
G01V 1/202
. . . .
{
Connectors, e.g. for force, signal or power
}
G01V 1/208
. . . .
{
having a continuous structure ( detecting traffic G08G, transducers in general G10K )
}
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G01V 1/22
.
Transmitting seismic signals to recording or processing apparatus ( signal transmitting systems in general G08C; transmission systems in general H04B )
G01V 1/223
. .
{
Radioseismic systems
}
G01V 1/226
. .
{
Optoseismic systems
}
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G01V 1/24
.
Recording seismic data ( transforming one recording into another G01V 1/32 ; recording measured values in general G01D )
G01V 1/242
. .
{
Seismographs
}
G01V 1/245
. .
{
Amplitude control for seismic recording ( control of amplification in general H03G )
}
G01V 1/247
. .
{
Digital recording of seismic data, e.g. in acquisition units or nodes
}
G01V 1/26
. .
Reference-signal-transmitting devices, e.g. indicating moment of firing of shot
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G01V 1/28
.
Processing seismic data, e.g. analysis, for interpretation, for correction ( G01V 1/48 takes precedence )
G01V 1/282
. .
{
Application of seismic models, synthetic seismograms
}
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G01V 1/284
. .
{
Application of the shear wave component and/or several components of the seismic signal
}
G01V 1/286
. . .
{
Mode conversion
}
G01V 1/288
. .
{
Event detection in seismic signals, e.g. microseismics
}
 ( earthquakes G01V 1/008 ; G01V 1/36 takes precedence )
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G01V 1/30
. .
Analysis ( G01V 1/50 takes precedence )
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G01V 1/301
. . .
{
for determining seismic cross-sections or geostructures
}
G01V 1/302
. . . .
{
in 3D data cubes
}
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G01V 1/303
. . .
{
for determining velocity profiles or travel times
}
G01V 1/305
. . . .
{
Travel times
}
G01V 1/306
. . .
{
for determining physical properties of the subsurface, e.g. impedance, porosity or attenuation profiles
}
G01V 1/307
. . .
{
for determining seismic attributes, e.g. amplitude, instantaneous phase or frequency, reflection strength or polarity
}
G01V 1/308
. . .
{
Time lapse or 4D effects, e.g. production related effects to the formation ( fluid flow per se E21B47 )
}
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G01V 1/32
. .
Transforming one recording into another
{
or one representation into another
}
G01V 1/325
. . .
{
Transforming one representation into another
}
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G01V 1/34
. .
Displaying seismic recordings
{
or visualisation of seismic data or attributes
}
G01V 1/345
. . .
{
Visualisation of seismic data or attributes, e.g. in 3D cubes
}
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G01V 1/36
. .
Effecting static or dynamic corrections on records, e.g. correcting spread ; Correlating seismic signals ; Eliminating effects of unwanted energy
G01V 1/362
. . .
{
Effecting static or dynamic corrections; Stacking
}
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G01V 1/364
. . .
{
Seismic filtering ( G01V 1/37 takes precedence )
}
G01V 1/366
. . . .
{
by correlation of seismic signals
}
G01V 1/368
. . . .
{
Inverse filtering
}
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G01V 1/37
. . .
specially adapted for seismic systems using continuous agitation of the ground,
{
e.g. using pulse compression of frequency swept signals for enhancement of received signals
}
G01V 1/375
. . . .
{
Correlating received seismic signals with the emitted source signal
}
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G01V 1/38
.
specially adapted for water-covered areas ( G01V 1/28 ,
{
G01V 1/42
}
 take precedence ) ]
G01V 1/3808
. .
{
Seismic data acquisition, e.g. survey design ( in general G01V 1/003 )
}
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G01V 1/3817
. .
{
Positioning of seismic devices
}
G01V 1/3826
. . .
{
dynamic steering, e.g. by paravanes or birds
}
G01V 1/3835
. . .
{
measuring position, e.g. by GPS or acoustically
}
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G01V 1/3843
. .
{
Deployment of seismic devices, e.g. of streamers ( equipment for marine deployment in general B63B )
}
G01V 1/3852
. . .
{
to the seabed
}
G01V 1/3861
. .
{
control of source arrays, e.g. for far field control
}
G01V 1/387
. .
Reducing secondary bubble pulse, i.e. reducing the detected signals resulting from the generation and release of gas bubbles after the primary explosion
G01V 1/393
. .
Means for loading explosive underwater charges, e.g. combined with ignition devices
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G01V 1/40
.
specially adapted for well-logging
G01V 1/42
. .
using generators in one well and receivers elsewhere or vice-versa ( G01V 1/52 takes precedence )
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G01V 1/44
. .
using generators and receivers in the same well ( G01V 1/52 takes precedence )
G01V 1/46
. . .
Data acquisition
G01V 1/48
. . .
Processing data
G01V 1/50
. . .
Analysing data
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G01V 1/52
. .
Structural details
G01V 1/523
. . .
{
Damping devices
}
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G01V 3/00
Electric or magnetic prospecting or detecting ( by optical means G01V 8/00 ) ; Measuring magnetic field characteristics of the earth, e.g. declination, deviation ( for navigation, for surveying G01C;
{
measuring direction or magnitude of magnetic fields or magnetic flux in general G01R 33/02
}
 )
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G01V 3/02
.
operating with propagation of electric current
G01V 3/04
. .
using dc
G01V 3/06
. .
using ac
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G01V 3/08
.
operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices ( with electromagnetic waves G01V 3/12 ; measuring the magnetic field characteristics of the earth G01V 3/40 )
G01V 3/081
. .
{
the magnetic field is produced by the objects or geological structures ( characterised by the method of magnetic field measurement G01R 33/00 )
}
G01V 3/082
. .
{
operating with fields produced by spontaneous potentials, e.g. electrochemical or produced by telluric currents ( G01V 3/26 takes precedence )
}
G01V 3/083
. .
{
Controlled source electromagnetic [CSEM] surveying
}
G01V 3/087
. .
{
the earth magnetic field being modified by the objects or geological structures
}
G01V 3/088
. .
{
operating with electric fields ( G01V 3/082 takes precedence )
}
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G01V 3/10
. .
using induction coils
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G01V 3/101
. . .
{
by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil ( measuring impedance or characteristics derived therefrom G01R 27/00 , e.g. quality factor G01R 27/26 )
}
G01V 3/102
. . . .
{
by measuring amplitude
}
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G01V 3/104
. . .
{
using several coupled or uncoupled coils ( G01V 3/101 takes precedence )
}
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G01V 3/105
. . . .
{
forming directly coupled primary and secondary coils or loops
}
G01V 3/107
. . . . .
{
using compensating coil or loop arrangements
}
G01V 3/108
. . . .
{
the emitter and the receiver coils or loops being uncoupled by positioning them perpendicularly to each other
}
G01V 3/12
.
operating with electromagnetic waves
{
( operating with millimetre waves G01V 8/005 )
}
G01V 3/14
.
operating with electron or nuclear magnetic resonance
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G01V 3/15
.
specially adapted for use during transport, e.g. by a person, vehicle or boat
G01V 3/16
. .
specially adapted for use from aircraft ( G01V 3/165 to G01V 3/175 take precedence )
G01V 3/165
. .
operating with magnetic or electric fields produced or modified by the object or by the detecting device ( with electromagnetic waves G01V 3/17 )
G01V 3/17
. .
operating with electromagnetic waves
{
( operating with millimetre waves G01V 8/005 )
}
G01V 3/175
. .
operating with electron or nuclear magnetic resonance
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G01V 3/18
.
specially adapted for well-logging
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G01V 3/20
. .
operating with propagation of electric current
G01V 3/22
. . .
using dc
G01V 3/24
. . .
using ac
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G01V 3/26
. .
operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device ( with electromagnetic waves G01V 3/30 )
G01V 3/265
. . .
{
Operating with fields produced by spontaneous potentials, e.g. electrochemicals or produced by telluric currents
}
G01V 3/28
. . .
using induction coils
G01V 3/30
. .
operating with electromagnetic waves
G01V 3/32
. .
operating with electron or nuclear magnetic resonance
G01V 3/34
. .
Transmitting data to recording or processing apparatus ; Recording data
G01V 3/36
.
Recording data ( G01V 3/34 takes precedence )
G01V 3/38
.
Processing data, e.g. for analysis, for interpretation, for correction ( computing in general G06 )
G01V 3/40
.
specially adapted for measuring magnetic field characteristics of the earth
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G01V 5/00
Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity ( determining the properties of materials G01N; measuring nuclear radiation G01T )
WARNING
-
Pending reclassification, the subgroups of this group are not complete; see also this group

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G01V 5/0008
.
{
Detecting hidden objects, e.g. weapons, explosives ( sorting of materials or articles according to radioactive properties B07C 5/342 ; investigating or analysing materials by the use of wave or particle radiation G01N 23/00 )
}
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G01V 5/0016
. .
{
Active interrogation, i.e. using an external radiation source, e.g. using pulsed, continuous or cosmic rays
}
G01V 5/0025
. . .
{
Measuring scattered radiation
}
G01V 5/0033
. . .
{
Mixed interrogation beams, e.g. using more than one type of radiation beam
}
G01V 5/0041
. . .
{
Multiple energy techniques using one type of radiation, e.g. X-rays of different energies ( multi-beam applications, e.g. X-rays and neutrons G01V 5/0033 ; spectroscopic applications G01V 5/0016 )
}
G01V 5/005
. . .
{
using Tomography, e.g. CT or SPECT ( detector details in CT applications G01T 1/2985 )
}
G01V 5/0058
. . .
{
using stereoscopic means
}
G01V 5/0066
. . .
{
having relative motion between the source, detector and object other than by conveyor ( G01V 5/005 takes precedence )
}
G01V 5/0075
. .
{
Passive interrogation ( for hand, feet or portals G01T 1/167 ; for contaminated surface areas G01T 1/169 )
}
G01V 5/0083
. .
{
utilizing a network, e.g. a remote expert, accessing remote data or the like
}
G01V 5/0091
. .
{
detecting special nuclear material [SNM], e.g. Uranium-235, Uranium-233 or Plutonium-239
}
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G01V 5/02
.
specially adapted for surface logging, e.g. from aircraft
G01V 5/025
. .
{
specially adapted for use from aircraft
}
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G01V 5/04
.
specially adapted for well-logging
G01V 5/045
. .
{
Transmitting data to recording or processing apparatus; Recording data
}
G01V 5/06
. .
for detecting naturally radioactive minerals
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G01V 5/08
. .
using primary nuclear radiation sources or X-rays
{
e.g. for inducing radioactivity; investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays, neutrons G01N 23/00
}
G01V 5/085
. . .
{
using another radioactive source
}
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G01V 5/10
. . .
using neutron sources
{
neutron generating tubes H05H 5/00 ; neutron sources using isotopes G21G 4/00
}
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G01V 5/101
. . . .
{
and detecting the secondary Y-rays produced in the surrounding layers of the bore hole
}
G01V 5/102
. . . . .
{
the neutron source being of the pulsed type
}
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G01V 5/104
. . . .
{
and detecting secondary Y-rays as well as reflected or back-scattered neutrons
}
G01V 5/105
. . . . .
{
the neutron source being of the pulsed type
}
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G01V 5/107
. . . .
{
and detecting reflected or back-scattered neutrons
}
G01V 5/108
. . . . .
{
the neutron source being of the pulsed type
}
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G01V 5/12
. . .
using gamma or X-ray sources
{
gamma sources using isotopes G21G 4/00 ; X-ray tubes H01J 35/00
}
G01V 5/125
. . . .
{
and detecting the secondary gamma- or X-rays in different places along the bore hole
}
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G01V 5/14
. . .
using a combination of several sources, e.g. a neutron and a gamma source
G01V 5/145
. . . .
{
using a neutron source combined with a gamma- or X-ray source
}
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G01V 7/00
Measuring gravitational fields or waves ; Gravimetric prospecting or detecting
G01V 7/005
.
{
using a resonating body or device, e.g. string ( G01V 7/08 to G01V 7/12 take precedence; measuring resonant frequency of mechanical vibrations G01H 13/00 ; measuring frequency per se G01R 23/00 )
}
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G01V 7/02
.
Details
G01V 7/04
. .
Electric, photoelectric, or magnetic indicating or recording means
G01V 7/06
. .
Analysis or interpretation of gravimetric records
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G01V 7/08
.
using balances ( balances in general G01G )
G01V 7/10
. .
using torsion balances, e.g. Eötvös balance
G01V 7/12
.
using pendulums
G01V 7/14
.
using free-fall time
G01V 7/16
.
specially adapted for use on moving platforms, e.g. ship, aircraft
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G01V 8/00
Prospecting or detecting by optical means ( measurement of characteristics of light G01J ; optical scanning systems G02B 26/10 ; discharge tubes detecting the presence of radiation H01J 40/00 , H01J 47/00 ; semiconductor devices sensitive to light H01L 31/00 )
NOTE
-
This group covers the use of
{
millimetre waves,
}
 infra-red, visible or ultra-violet light.

G01V 8/005
.
{
operating with millimetre waves, e.g. measuring the black losey radiation
}
G01V 8/02
.
Prospecting
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G01V 8/10
.
Detecting, e.g. by using light barriers ( by reflection from the object G01S 17/00 ; counting of objects carried by a conveyer G06M 7/00 ; signalling or calling arrangements G08B ; detecting movement of traffic to be counted or controlled G08G 1/01 ; proximity switches H03K 17/945 , H03K 17/965 )
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G01V 8/12
. .
using one transmitter and one receiver
G01V 8/14
. . .
using reflectors
G01V 8/16
. . .
using optical fibres
G01V 8/18
. . .
using mechanical scanning systems
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G01V 8/20
. .
using multiple transmitters or receivers
G01V 8/22
. . .
using reflectors
G01V 8/24
. . .
using optical fibres
G01V 8/26
. . .
using mechanical scanning systems
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G01V 9/00
Prospecting or detecting by methods not provided for in groups G01V 1/00 to G01V 8/00
G01V 9/002
.
{
using fields or radiation detectable only by persons susceptible therefor, e.g. radio-esthesis, dowsing
}
G01V 9/005
.
{
by thermal methods, e.g. after generation of heat by chemical reactions
}
G01V 9/007
.
{
by detecting gases or particles representative of underground layers at or near the surface ( analysing earth materials G01N 33/24 ; analysing gases per se G01N )
}
G01V 9/02
.
Determining existence or flow of underground water
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G01V 11/00
prospecting or detecting by methods combining techniques covered by two or more of main groups G01V 1/00 to G01V 9/00
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G01V 11/002
.
{
Details, e.g. power supply systems for logging instruments, transmitting or recording data, specially adapted for well logging, also if the prospecting method is irrelevant ( means for transmitting well survey signals E21B 47/12 ; signal transmission systems in general G08C ; transmission in general H04B )
}
G01V 11/005
. .
{
Devices for positioning logging sondes with respect to the borehole wall ( centralising devices for drilling rods or pipes E21B 17/10 ; setting or locking tools in boreholes E21B 23/00 ; Locating objects in boreholes E21B 47/09 )
}
G01V 11/007
.
{
using the seismo-electric effect
}
G01V 13/00
Manufacturing, calibrating, cleaning, or repairing instruments or devices covered by the preceding groups
G01V 15/00
Tags attached to, or associated with, an object, in order to enable detection of the object ( record carriers for use with machines G06K 19/00 ; signs, labels G09F )
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G01V 99/00
Subject matter not provided for in other groups of this subclass
G01V 99/005
.
{
Geomodels or geomodelling, not related to particular measurements
}
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G01V 2001/00
Seismology ; Seismic or acoustic prospecting or detecting
NOTE
-
Groups G01V 1/44 to G01V 1/52 take precedence over groups G01V 1/001 to G01V 1/393 G01V 1/42

WARNING
-
Group G01V 1/159 does not correspond to former or current IPC groups. Concordance ECLA:IPC for this group is as follows: - G01V 1/159 : G01V 1/02

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G01V 2001/16
.
Receiving elements for seismic signals ( electromechanical transducers H04R ) ; Arrangements or adaptations of receiving elements
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G01V 2001/20
. .
Arrangements of receiving elements, e.g. geophone pattern
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G01V 2001/201
. . .
{
Constructional details of seismic cables, e.g. streamers ( integrated optoseismic systems G01V 1/226 ; line connectors in general H01R, transducer mountings in general G10K 11/004 )
}
G01V 2001/204
. . . .
Reinforcements, e.g. by tensioning cables
G01V 2001/205
. . . .
Internal damping
G01V 2001/207
. . . .
Buoyancy
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G01V 2001/40
.
specially adapted for well-logging
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G01V 2001/52
. .
Structural details
G01V 2001/526
. . .
Mounting of transducers
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G01V 2003/00
Electric or magnetic prospecting or detecting ( by optical means G01V 8/00 ) ; Measuring magnetic field characteristics of the earth, e.g. declination, deviation ( for navigation, for surveying G01C;
{
measuring direction or magnitude of magnetic fields or magnetic flux in general G01R 33/02
}
 )
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G01V 2003/08
.
operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices ( with electromagnetic waves G01V 3/12 ; measuring the magnetic field characteristics of the earth G01V 3/40 )
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G01V 2003/083
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{
Controlled source electromagnetic [CSEM] surveying
}
G01V 2003/084
. . .
Sources
G01V 2003/085
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Receivers
G01V 2003/086
. . .
Processing
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G01V 2200/00
Details of seismic or acoustic prospecting or detecting in general
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G01V 2200/10
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Miscellaneous details
G01V 2200/12
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Clock synchronization-related issues
G01V 2200/14
. .
Quality control
G01V 2200/16
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Measure-while-drilling or logging-while-drilling
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G01V 2210/00
Details of seismic processing or analysis
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G01V 2210/10
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Aspects of acoustic signal generation or detection
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G01V 2210/12
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Signal generation
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G01V 2210/121
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Active source
G01V 2210/1212
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Shot
G01V 2210/1214
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Continuous
G01V 2210/1216
. . . .
Drilling-related
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G01V 2210/123
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Passive source, e.g. micro-seismics
G01V 2210/1232
. . . .
Earthquakes
G01V 2210/1234
. . . .
Hydrocarbon reservoir, e.g. spontaneous or induced fracturing
G01V 2210/1236
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Acoustic daylight, e.g. cultural noise
G01V 2210/125
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Virtual source
G01V 2210/127
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Cooperating multiple sources
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G01V 2210/129
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Source location
G01V 2210/1291
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Air
G01V 2210/1293
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Sea
G01V 2210/1295
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Land surface
G01V 2210/1297
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Sea bed
G01V 2210/1299
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Subsurface, e.g. in borehole or below weathering layer or mud line
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G01V 2210/14
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Signal detection
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G01V 2210/142
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Receiver location
G01V 2210/1421
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Air
G01V 2210/1423
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Sea
G01V 2210/1425
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Land surface
G01V 2210/1427
. . . .
Sea bed
G01V 2210/1429
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Subsurface, e.g. in borehole or below weathering layer or mud line
G01V 2210/144
. . .
with functionally associated receivers, e.g. hydrophone and geophone pairs
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G01V 2210/16
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Survey configurations
G01V 2210/161
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Vertical seismic profiling [VSP]
G01V 2210/163
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Cross-well
G01V 2210/165
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Wide azimuth
G01V 2210/167
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Very long offset
G01V 2210/169
. . .
Sparse arrays
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G01V 2210/20
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Trace signal pre-filtering to select, remove or transform specific events or signal components, i.e. trace-in/trace-out ( removing noise G01V 2210/32 )
G01V 2210/21
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Frequency-domain filtering, e.g. band pass
G01V 2210/22
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Time-domain filtering
G01V 2210/23
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Wavelet filtering
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G01V 2210/24
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Multi-trace filtering
G01V 2210/242
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F-k filtering, e.g. ground roll
G01V 2210/244
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Radon transform
G01V 2210/25
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Transform filter for merging or comparing traces from different surveys
G01V 2210/26
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Modulation or demodulation, e.g. for continuous sources
G01V 2210/27
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Other pre-filtering
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G01V 2210/30
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Noise handling ( trace signal pre-filtering G01V 2210/20 )
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G01V 2210/32
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Noise reduction
G01V 2210/322
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Trace stacking
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G01V 2210/324
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Filtering
G01V 2210/3242
. . . .
Flow noise
G01V 2210/3244
. . . .
Cultural noise
G01V 2210/3246
. . . .
Coherent noise, e.g. spatially coherent or predictable
G01V 2210/3248
. . . .
Incoherent noise, e.g. white noise
G01V 2210/34
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Noise estimation ( quality control G01V 2200/14 )
G01V 2210/36
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Noise recycling, i.e. retrieving non-seismic information from noise
G01V 2210/38
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Noise characterisation or classification
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G01V 2210/40
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Transforming data representation ( for pre-filtering purposes G01V 2210/20 )
G01V 2210/41
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Arrival times, e.g. of P or S wave or first break
G01V 2210/42
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Waveform, i.e. using raw or pre-filtered trace data
G01V 2210/43
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Spectral
G01V 2210/44
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F-k domain
G01V 2210/45
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F-x or F-xy domain
G01V 2210/46
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Radon transform
G01V 2210/47
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Slowness, e.g. tau-pi
G01V 2210/48
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Other transforms
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G01V 2210/50
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Corrections or adjustments related to wave propagation ( noise handling G01V 2210/30 )
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G01V 2210/51
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Migration
G01V 2210/512
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Pre-stack
G01V 2210/514
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Post-stack
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G01V 2210/52
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Move-out correction
G01V 2210/522
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Dip move-out [DMO]
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G01V 2210/53
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Statics correction, e.g. weathering layer or transformation to a datum
G01V 2210/532
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Dynamic changes in statics, e.g. sea waves or tidal influences
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G01V 2210/54
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Borehole-related corrections
G01V 2210/542
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Casing
G01V 2210/544
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Invasion zone
G01V 2210/55
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Array focusing ; Phased arrays
G01V 2210/56
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De-ghosting ; Reverberation compensation
G01V 2210/57
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Trace interpolation or extrapolation, e.g. for virtual receiver ; Anti-aliasing for missing receivers
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G01V 2210/58
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Media-related
G01V 2210/582
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Dispersion
G01V 2210/584
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Attenuation
G01V 2210/586
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Anisotropic media
G01V 2210/588
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Non-linear media
G01V 2210/59
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Other corrections
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G01V 2210/60
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Analysis
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G01V 2210/61
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Analysis by combining or comparing a seismic data set with other data
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G01V 2210/612
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Previously recorded data, e.g. time-lapse or 4D
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G01V 2210/6122
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Tracking reservoir changes over time, e.g. due to production
G01V 2210/6124
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Subsidence, i.e. upwards or downwards
G01V 2210/614
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Synthetically generated data
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G01V 2210/616
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Data from specific type of measurement
G01V 2210/6161
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Seismic or acoustic, e.g. land or sea measurements
G01V 2210/6163
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Electromagnetic
G01V 2210/6165
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Gravitational
G01V 2210/6167
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Nuclear
G01V 2210/6169
. . . .
using well-logging
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G01V 2210/62
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Physical property of subsurface
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G01V 2210/622
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Velocity, density or impedance
G01V 2210/6222
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Velocity ; travel time
G01V 2210/6224
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Density
G01V 2210/6226
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Impedance
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G01V 2210/624
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Reservoir parameters
G01V 2210/6242
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Elastic parameters, e.g. Young, Lam? or Poisson
G01V 2210/6244
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Porosity
G01V 2210/6246
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Permeability
G01V 2210/6248
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Pore pressure
G01V 2210/626
. . .
with anisotropy
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G01V 2210/63
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Seismic attributes, e.g. amplitude, polarity, instant phase
G01V 2210/632
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Amplitude variation versus offset or angle of incidence [AVA, AVO, AVI]
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G01V 2210/64
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Geostructures, e.g. in 3D data cubes
G01V 2210/641
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Continuity of geobodies
G01V 2210/642
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Faults
G01V 2210/643
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Horizon tracking
G01V 2210/644
. . .
Connectivity, e.g. for fluid movement
G01V 2210/645
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Fluid contacts
G01V 2210/646
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Fractures
G01V 2210/647
. . .
Gas hydrates
G01V 2210/65
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Source localisation, e.g. faults, hypocenters or reservoirs
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G01V 2210/66
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Subsurface modeling
G01V 2210/661
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Model from sedimentation process modeling, e.g. from first principles
G01V 2210/663
. . .
Modeling production-induced effects
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G01V 2210/665
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using geostatistical modeling
G01V 2210/6652
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Kriging
G01V 2210/667
. . .
Determining confidence or uncertainty in parameters
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G01V 2210/67
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Wave propagation modeling
G01V 2210/671
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Raytracing
G01V 2210/673
. . .
Finite-element ; Finite-difference
G01V 2210/675
. . .
Wave equation ; Green's functions
G01V 2210/677
. . .
Spectral ; Pseudo-spectral
G01V 2210/679
. . .
Reverse-time modeling or coalescence modelling, i.e. starting from receivers
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G01V 2210/70
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Other details related to processing
G01V 2210/72
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Real-time processing
G01V 2210/74
. .
Visualisation of seismic data
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Last Modified: 04/16/2013 4:31:16 PM